import pluginclassclass Sample(pluginclass.Plugin):    """    A sample plugin, only for example    """    def init(self):        """        Use init instead of __init__!        """        #print "Hello world!"        #self.registerCallback("on_map_done", self.mapdone)        #self.registerChatCommand("rcon", self.rcon)        #self.registerEventDispatcher(ottd_client_event.IngameChat, self.onIngameChat)        pass